Sewer-trap.



N. H. KING.

SEWER TRAP.

APPLICATION FILED MAR. 28, 1913.

Patented Oct. 19, 1915.

WITNES S.-

ATTORNEY.

pniinp s'rarns Nr. orrrcn.

NATHAN n. KING, or soLvAY, NEW YORK.

SEWER-TRIKE. 7

" Application filed. March 28, 1913. Seria1 l To.757,334;

To all whom it may concern:

Be it known that I, NATHAN H. KING, of

Solvay, in the county of Onondaga, in the State of New York, have invented new and pose designed.

useful Improvements in Sewer-Traps, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in sewer traps and more particularly to that class of sewer traps having an inlet and a discharge pipe, the adjacent endsof whichare connected by a curved joint adapted to lie below the plane of the inlet and discharge pipes so that the joint will remain substantially full of the fluid and form a liquid seal preventing the passage of gas through the trap.

The object ofmy invention is to construct a simple, durable and inexpensive trap which shall be highly eflicient for the pun Another object is to provide means for readily cleansing the portion of the trap lying below the plane of the inlet and discharge pipes.

A further object is to so construct the trap that the inlet and discharge pipes will lie in different vertical planes and the curved joint connecting them shall lie in a vertical plane diagonally disposed to the planes of the inlet and discharge pipes so that a cleaning port will open directly into the discharge pipe and a cleaning pipe may be fitted in this port and will lead directly into the discharge pipe without interfering with or contacting with the inlet pipe.

Other objects and uses will appear from the following description.

In the drawings, Figure 1 is a perspective view of the trap. Fig. 2 is a cross section on line 22, Fig. 1, showing the inlet pipe and its union turned sufficiently far so as to appear in section. Fig. 3 is a cross section on line 33, Fig. 1. Fig. 4 is a cross section through the vent pipe showing the means for supporting the flexiblecleaning chain. Fig. 5 shows the means for attaching washers to the cleaning chain.

In order that my invention maybe clearly understood, I have shown an inlet pipe 1 and an outlet pipe 2 and a substantially U-shaped pipe 3 connected to the adja cent ends of these pipes by the unions -4r and -5- respectively. This pipe 3- is somewhat diagonally disposed with respect to the vertlcal-planes of the pipes 1 and 2 so that these pipes 1" and 2- extend substantially parallel with each other, but he in different vertical planes.

The union 5 is provided with a plurality of ports having circumferentially extending shoulders -6 and 7.

The circumferential shoulder 6 is internally threaded for receiving an upright plpe 8- externally threaded at each of its ends, The upper portion of the pipe is adapteg to receive an externally. threaded cap The circumferentially extending shoulder 7 opens directly into, and is axially aimed w th, and extends in the opposite direction from the discharge pipe 2 and s internally threaded for receiving a cleanng p1pe-1Q having one o'fits ends externally threaded. The other end is somewhat enlarged radially and internally threaded for receiving a plug 11- having 7 a nut 12- formed integral therewith. This pipe -10 preferably inclines upwardly from the horizontal a sufiicient degree so as to prevent any back-flow from'the discharge pipe 2 or union 6 therethrough.

The union 4 is formed with a portopening upwardly and having a circumferentially extending shoulder 13 internally threaded for receiving a vent pipe 14 having a portion of one of its ends threaded for coaction therewith, the other end is adapted to receive a vent cap 15- having openings 16 therein.

Traps of this nature are usually placed purpose.

It is readily apparent that the sewage will pass through the inlet pipe 1 into the pip 3- and be discharged through the pipe -2, butthat a portion of the pipe 3 will always remain filled with the fluid so as to form a liquid sealto prevent the flow of gases through the trap.

The pipes 8 and -1L are adapted to extend above the ground or in some place the chain 17' that when the ring 20 contacts with its ear 18, the disk Will lie above the opening into the discharge pipe -2--, the chain being of suflicient length so that the disk 21 may readily be pulled around through the U-shaped pipe 3 for cleansing the pipe of any refuse matter. The pipe 14 and its cap 15- also act as a vent for any gases which may arise from the fluid confined in the U-shaped pipe 3.

It is readily apparent that the pipe 3 may extend at any angle with respect to the direction of the inlet or outlet pipe, but

- preferably it extends as nearly in the direclength and size Without departing from the spirit of my invention.

What I claim is: e

In a sewer trap a U-shaped tubular section, a three-way union connected to one end of said section, an inlet pipe connected to said union, a clean-out pipe connected to said union and extending vertically from the union and in substantial alinement with the adjacent portion of the U-shaped section, a four-way union connected to the other end of said U-shaped section, an outlet pipe connected to said union, a clean-out pipe connected to said union and vertically disposed and in substantial alinement with the adjacent end of the U-shaped section and a second clean-out pipe connected to said union and in substantial alinement with the outlet pipe and upwardly inclined as it extends from said union, and separate closures for said clean-out pipes.

In Witness whereof I have hereunto set my hand this 14th day of March 1913.

NATHAN H. KING.

Witnesses E. A. THOMPSON, VIOLA HOWLAND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, D. 0. 

